Soybean Insects
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Best Management Practices for Soybean Production
This is your unbiased, research-based guide to soybean production to help increase yield, reduce input costs and protect your investment.
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Wet Conditions Make Crop Fields Suitable for Fungus Gnats
An insect that we don’t normally receive reports about in crop fields are fungus gnats. However, the wet, cool spring here in South Dakota has led to favorable conditions in crop fields.
Monitor for Seedcorn Maggots in Wet Planted Fields
Current spring conditions, including wet soil and cool temperatures, could result in seedcorn maggot issues in South Dakota.
Seedcorn Maggot Degree Day Activity Estimates: May 29, 2024
Many of the northern counties are approaching enough degree days for a peak second-generation seedcorn maggot emergence to occur.
Seedcorn Maggot Degree Day Activity Estimates: May 24, 2024
Parts of South Dakota are currently at, slightly below, or over the 1,080 degree days for the peak second generation emergence of seedcorn maggots.
Seedcorn Maggot Degree Day Activity Estimates: May 16, 2024
Based on accumulated degree days, areas in southern South Dakota are approaching the peak emergence period for the second generation of seed corn maggots.
Seedcorn Maggot Degree Day Activity Estimates: May 9, 2024
With the cool, wet start to the 2024 season, it is important to consider the possibility that seedcorn maggots could cause issues for crop seedlings
South Dakota Overwintering Bean Leaf Beetle Predicted Mortality: 2023-2024
Every year we evaluate the overwintering success of bean leaf beetles in South Dakota. At emergence, the overwintering population of bean leaf beetle adults will move into soybean fields and begin feeding on the seedlings.
South Dakota Grasshopper Prediction for 2024
In 2024, grasshoppers are likely to cause problems in areas of South Dakota due to large populations that were present in 2023 and the relatively late first hard freeze date observed in much of the state.
Organophosphate Insecticides Under Continual Review by the Environmental Protection Agency
Recent moves by the EPA to limit or prevent the use of organophosphate insecticides present challenges for growers seeking effective pest control. So, what is motivating these changes, and what do they mean for producers?
Chlorpyrifos Products Can be Used in 2024 for Insect Pest Management
The U.S. Environmental Protection Agencys recently announced that currently registered insecticide products with the active ingredient chlorpyrifos will be legal to use on labeled crops during the 2024 growing season.